/** 
 * @file llpanelexperiencelog.cpp
 * @brief llpanelexperiencelog
 *
 * $LicenseInfo:firstyear=2014&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2014, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */


#include "llviewerprecompiledheaders.h"
#include "llpanelexperiencelog.h"

#include "llexperiencelog.h"
#include "llexperiencecache.h"
#include "llbutton.h"
#include "llscrolllistctrl.h"
#include "llcombobox.h"
#include "llspinctrl.h"
#include "llcheckboxctrl.h"
#include "llfloaterreg.h"
#include "llfloaterreporter.h"
#include "llinventoryfunctions.h"


#define BTN_PROFILE_XP "btn_profile_xp"
#define BTN_REPORT_XP "btn_report_xp"

static LLPanelInjector<LLPanelExperienceLog> register_experiences_panel("experience_log");


LLPanelExperienceLog::LLPanelExperienceLog(  )
	: mEventList(nullptr)
	, mPageSize(25)
	, mCurrentPage(0)
{
	buildFromFile("panel_experience_log.xml");
}

BOOL LLPanelExperienceLog::postBuild( void )
{
	LLExperienceLog* log = LLExperienceLog::getInstance();
	mEventList = getChild<LLScrollListCtrl>("experience_log_list");
	mEventList->setCommitCallback(boost::bind(&LLPanelExperienceLog::onSelectionChanged, this));
	mEventList->setDoubleClickCallback( boost::bind(&LLPanelExperienceLog::onProfileExperience, this));

	getChild<LLButton>("btn_clear")->setCommitCallback(boost::bind(&LLExperienceLog::clear, log));
	getChild<LLButton>("btn_clear")->setCommitCallback(boost::bind(&LLPanelExperienceLog::refresh, this));

	getChild<LLButton>(BTN_PROFILE_XP)->setCommitCallback(boost::bind(&LLPanelExperienceLog::onProfileExperience, this));
	getChild<LLButton>(BTN_REPORT_XP )->setCommitCallback(boost::bind(&LLPanelExperienceLog::onReportExperience, this));
	getChild<LLButton>("btn_notify"  )->setCommitCallback(boost::bind(&LLPanelExperienceLog::onNotify, this));
	getChild<LLButton>("btn_next"    )->setCommitCallback(boost::bind(&LLPanelExperienceLog::onNext, this));
	getChild<LLButton>("btn_prev"    )->setCommitCallback(boost::bind(&LLPanelExperienceLog::onPrev, this));

	LLCheckBoxCtrl* check = getChild<LLCheckBoxCtrl>("notify_all");
	check->set(log->getNotifyNewEvent());
	check->setCommitCallback(boost::bind(&LLPanelExperienceLog::notifyChanged, this));


	LLSpinCtrl* spin = getChild<LLSpinCtrl>("logsizespinner");
	spin->set(log->getMaxDays());
	spin->setCommitCallback(boost::bind(&LLPanelExperienceLog::logSizeChanged, this));

	mPageSize = log->getPageSize();
	refresh();
	mNewEvent = LLExperienceLog::instance().addUpdateSignal(boost::bind(&LLPanelExperienceLog::refresh, this));
	return TRUE;
}

LLPanelExperienceLog* LLPanelExperienceLog::create()
{
	return new LLPanelExperienceLog();
}

void LLPanelExperienceLog::refresh()
{
	S32 selected = mEventList->getFirstSelectedIndex();
	mEventList->deleteAllItems();
	const auto& events = LLExperienceLog::instance().getEvents();

	if(events.empty())
	{
		mEventList->setCommentText(getString("no_events"));
		return;
	}

	setAllChildrenEnabled(FALSE);

	LLSD item;
	bool waiting = false;
	LLUUID waiting_id;

	int itemsToSkip = mPageSize*mCurrentPage;
	U32 items = 0;
	bool moreItems = false;

	for (auto day = events.crbegin(), end_day = events.crend(); day != end_day; ++day)
	{
		const std::string date = day->first;
		if (LLExperienceLog::instance().isExpired(date))
		{
				continue;
		}
		const LLSD& dayArray = day->second;
			int size = dayArray.size();
			if(itemsToSkip > size)
			{
				itemsToSkip -= size;
				continue;
			}
			if(items >= mPageSize && size > 0)
			{
				moreItems = true;
				break;
			}
			for(int i = dayArray.size() - itemsToSkip - 1; i >= 0; i--)
			{
				if(items >= mPageSize)
				{
					moreItems = true;
					break;
				}
				const LLSD event = dayArray[i];
				LLUUID id = event[LLExperienceCache::EXPERIENCE_ID].asUUID();
                const LLSD& experience = LLExperienceCache::instance().get(id);
				if(experience.isUndefined()){
					waiting = true;
					waiting_id = id;
				}
				if(!waiting)
				{
					item["id"] = event;

					LLSD& columns = item["columns"];
					columns[0]["column"] = "time";
					columns[0]["value"] = day->first+event["Time"].asString();
					columns[1]["column"] = "event";
					columns[1]["value"] = LLExperienceLog::getPermissionString(event, "ExperiencePermissionShort");
					columns[2]["column"] = "experience_name";
					columns[2]["value"] = experience[LLExperienceCache::NAME].asString();
					columns[3]["column"] = "object_name";
					columns[3]["value"] = event["ObjectName"].asString();
					mEventList->addElement(item);
				}
				++items;
			}
	}

	if(waiting)
	{
		mEventList->deleteAllItems();
		mEventList->setCommentText(getString("loading"));
        LLExperienceCache::instance().get(waiting_id, boost::bind(&LLPanelExperienceLog::refresh, this));
	}
	else
	{
		setAllChildrenEnabled(TRUE);

		mEventList->setEnabled(TRUE);
		getChild<LLButton>("btn_next")->setEnabled(moreItems);
		getChild<LLButton>("btn_prev")->setEnabled(mCurrentPage>0);
		getChild<LLButton>("btn_clear")->setEnabled(mEventList->getItemCount()>0);
		if(selected<0)
		{
			selected = 0;
		}
		mEventList->selectNthItem(selected);
		onSelectionChanged();
	}
}

void LLPanelExperienceLog::onProfileExperience()
{
	LLSD event = getSelectedEvent();
	if(event.isDefined())
	{
		LLFloaterReg::showInstance("experience_profile", event[LLExperienceCache::EXPERIENCE_ID].asUUID(), true);
	}
}

void LLPanelExperienceLog::onReportExperience()
{
	LLSD event = getSelectedEvent();
	if(event.isDefined())
	{
		LLFloaterReporter::showFromExperience(event[LLExperienceCache::EXPERIENCE_ID].asUUID());
	}
}

void LLPanelExperienceLog::onNotify()
{
	LLSD event = getSelectedEvent();
	if(event.isDefined())
	{
		LLExperienceLog::instance().notify(event);
	}
}

void LLPanelExperienceLog::onNext()
{
	mCurrentPage++;
	refresh();
}

void LLPanelExperienceLog::onPrev()
{
	if(mCurrentPage>0)
	{
		mCurrentPage--;
		refresh();
	}
}

void LLPanelExperienceLog::notifyChanged()
{
	LLExperienceLog::instance().setNotifyNewEvent(getChild<LLCheckBoxCtrl>("notify_all")->get());
}

void LLPanelExperienceLog::logSizeChanged()
{
	int value = (int)(getChild<LLSpinCtrl>("logsizespinner")->get());
	LLExperienceLog::instance().setMaxDays(value);
	refresh();
}

void LLPanelExperienceLog::onSelectionChanged()
{
	bool enabled = (1 == mEventList->getNumSelected());
	getChild<LLButton>(BTN_REPORT_XP)->setEnabled(enabled);
	getChild<LLButton>(BTN_PROFILE_XP)->setEnabled(enabled);
	getChild<LLButton>("btn_notify")->setEnabled(enabled);
}

LLSD LLPanelExperienceLog::getSelectedEvent()
{
	LLScrollListItem* item = mEventList->getFirstSelected();
	if(item)
	{
		return item->getValue();
	}
	return LLSD();
}
